Window attachment.



W. POTTER.

WINDOW ATTACHMENT.

APPLICATION FILLED DEC. 13, 1912.

1,103,376. Patented July 14,1914

2 SHEETS-SHEET 2.

WITNESSES INVENTOR THE NORRIS PETERS CO FHDTO-LITHO. WASHINGTON D.

blinds,

WILLIAM POTTER, or new "roan, n. Y.

WINDOW ATTACHMENT.

Specification of Letters Patent.

Patented July it, 1914..

Application filed December 13, 1912. Serial No. 736,457.

To all whom it may concern Be it known that I, WILLIAM POTTER, a citizen of the United States of America, and residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Vv'indow Attachments, of which the following is a specification, such as will enable those skilled in the art to which it appertains to make and use the same.

This invention relates to movable objects, particularly of a sliding type, and the object thereof is to provide means for maintaining such objects in parallelism at all times; a further object is to adapt the said means to window elements, such as sashes, shades and the like, with an especial reference to the sashes and shades of railway cars; a further object is to make the said means spring-actuated, when desired, to serve as substitutes for the usual sashweights or equivalents; a further object is to provide positive locks for the said means, when desired, either asv opposing means to springs or weights or as means for manipulation from the window exterior; a further object is to so construct the said means as to be applicable to existing windows without the necessity for making any material or costly change therein; and, with these and other objects in view, my invention consists in the construction hereinafter fully described and claimed.

My invention is fully set forth in the following specification, of which the accompanying drawings form a part, in which the separate parts are designated by the saime reference characters in each of the views, and in which Figure l is an elevation of a window pro vided. with my invention applied to both sash and shade, and partly in section; Fig. 2 is a section taken on the line 2-2 of Fig. 1; Fig. 3 is an enlarged, sectional, view of the sash actuating means; Fig. 4: is'an enlarged detail of the sashlock, taken on the line 44 of Fig. 1; Fig. 5 is a similar view on the line 5-5 of Fig. 1; Fig. 6 is a section on the line 66 of Fig. 4; Fig. 7 is a View similar to Fig. 1 but showing a modification thereover; Fig. 8 is an enlarged section on the line 8-8 of Fig. 7 Fig. 9 is a section on the line 99 of Fig. 8; and Fig. 10 is a detail view on the line 10-10 of Fig. 8.

In Figs. 1 to 6, inclusive, I have shown one form of embodiment of my invention as applied to a railway-car window frame a provided with a movable sash a and the usual shade a the latter being spring-actuated at the top in the usual or any desired manner, but the former is divested of the usual weights, springs, or other actuating or balancing means. Upon either side of the window, and inward of the sash-run a I provide a vertical rack b, in the form shown comprising channel metal having the rack on one of its perpendicular members, the other serving as a guide or limiting means, this being clearly shown in -Fig. 6, and these racks may be held in position by means of the usual facing strips or beads a or in any other desired manner which will insure their permanent vertical arrangement. Passed horizontally through the lower edge of the shade a is a rod 0 which carries two rigid pinions c at the ends thereof in permanent engagement with the corresponding racks I), thus insuring the complemental movement of both sides of the shade and maintaining the same in absolute parallelism, and I also provide a finger-piece o of any desired formation to move the shade but permits of rocking the tube 0 through which the rod 0 passes and in which it rotates and, by reference to Fig. 5, it will be seen that I provide a spring-arm c on the said tube which normally engages with the corresponding rack b but, by rocking the tube 0 by an upward movement of the finger-piece 0 the said arm is disengaged from the rack and movement of the shade is possible' in either direction, although it may be moved downwardly without so releasing the arm from the rack as it is made of light, spring, material, and it will thus be seen that the shade may be readily moved and automatically locks itself in any desired position, and said shade is always in absolute alinement with the sides of the window frame. Secured to the inner face of the lower sash-bar is a tube 61, held bymeans of clips d which may be loosened to permit of the tube rotation for adjustment as here inafter set forth, and within the said tube, as shown in detail in Fig. 3, is a rod 01 which carries a rigid pinion d on either end in permanent engagement with the corresponding racks, and I prefer to employ anti-frictional means for the said rod, as shown. A spring d is secured at one end preferably one which i to the rod (Z3 and at its other end'to a block d held rigidly in the tube 03, the said spring being of a strength sufficient-to support the sash at all times and, for the purpose of adjustment of the spring tension, the clips 6Z2 may be loosened as described and the tube cl rotated in any desired manner, after which the clips are again tightened and the sash remains in any position in which it may be moved but, to insure such sash position against the vibratory action of a moving car, I may employ an arm 03 Fig.4, held against'revolution on-the tube 03 but slidable thereon, provided with teeth 6Z which are adapted to be carried into engagement with the corresponding rack b and thus positively lock the sash. In the form just described it will be seen that but the part of passengers to pull down the shades and not the-sashes when entering long tunnels, it being impossible, in this form, to cover the opening of the window with-the shade to receive the trainmen, and the usual discomfort to other passengers through such deception is rendered impossible and, as the sashes are generally very limited in the extent of opening, this shade limitation offers no possible objection as it can be used for the entire transparent length of the sash and no benefit results from having the sash up and the shade down. I

In Figs. 7 to 10, however, I have shown my invention applied to the sash and shade independently, this requiring two sets of racks e and f, the same tubes, rods, and

pinions being employed, but in this form I embed the tube d in the sash-bar and eliminate the sash-lock already described and, while I have not shown such a lock for the alternate form, nor indeed even the tube holding or adjustment means, it will be obvious that many forms of these may be readily conceived, this modification being merely shown to demonstrate the applicability of my invention to such double use, either in cars or buildings, the sash and shade alinement and parallelism being the main object sought, and it will be noted that, withsuch alinement maintenance, the unpleasant rattling of sashes against the sides of the window frame is avoided.

My invention is very simple and efieotive and is well adapted for the purpose for which it is intended, as well as comparatively inexpensive in installation, and various changes in and modifications over the details shown and described may be made without departing from the spirit of my in-' vention or sacrificing its advantages.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is v In a window provided with the usual sliding sash and shade, a rack secured to each side of said window, adjacent said sash, a

rod rotatable on said sash, a rod rotatable insaid shade, and pinions'on said rods in engagement with said racks to maintain said sash and shade in parallel1sm..

In testimony that I claim the foregoingas my invention I have signed my name in presence of the subscribing witnesses this 11th day of December 1912.

wILLIAMPoTTEa V WVitnesses I I GEORGE F. BENTLEY, J. G. LARSEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G.v 

